Question

Edward worked these hours during the week: 6, 5 1/2, 4 1/4, 7 1/2, 4 3/4. If he is paid $5.15 per hour, how much did he earn?A) $133.90B) $141.63C) $144.20D) $139.05

Answer 1

Given:

Worked hours during the week are:

`6,\text{ }5(1)/(2),\text{ }4(1)/(4),\text{ }7(1)/(2),\text{ }4(3)/(4)`

Per hours charge is $5.15

Sol:

Per hours charge is $5.15

Total working hours per week is:

`\begin{gathered} =6+5(1)/(2)+4(1)/(4)+7(1)/(2)+4(3)/(4) \\ \\ =6+(10+1)/(2)+(16+1)/(4)+(14+1)/(2)+(16+3)/(4) \\ \\ =6+(11)/(2)+(17)/(4)+(15)/(2)+(18)/(4) \\ \\ =(24+22+17+30+18)/(4) \\ \\ =(111)/(4) \end{gathered}`

If one hour's charge is $5.15 so a charge of 111/4 hours.

`\begin{gathered} =(111)/(4)*5.15 \\ \\ =142.9125 \end{gathered}`

In a week Edward $142.9125 earn.